Feed-water heater.



No. 707,575. Patented Aug. 26, |902. G. FLORACK.

FEED WATER HEATER.

(Application filed 04:1:` 1B, 1901.)

2 Sheets-Sheet I'.

(Nn Model.)

rig: 7.

TH: Nonms mms cc. FHoTuumo., WASHINGTON; Dy c.

No. 707,575. Patented Aug. 26,1902.

G. FLORACK.

FEED WATER HEATER.

(Application filed Oct. 15, 1901.)

2 Sheets Sheet 2.

(No Model.)

Nieren Sramns GOTTFRIED FLORACK, OF DUSSELDORF, GERMANY.

FEED-WATER HEATER.

SPECIFIGATIGN forming part of Letters Patent No. 707,575, dated August 26, 190.2.

Application filed October l5, 190].. Serial No. 78,691- (No modelJ To (LZ/ whom, it may concern:

Be it known that l, GOTTFRIED FLORACK, a citizen of Germany, and a resident of Dusseldorf, Germany,`have invented certain new and useful Improvements in Feed-Tater Heaters, of which the following is a specification.

This invention relates to apparatus for heating the feed-water of boilers by means of the exhaust-steam, and has for its object to construct a feed-Water heater which combines great efliciency as regards the utilization oi the exhaust With compactness, simplicity, cheapness, and facility for cleaning.

In the accompanyingdrawings, Figure-1 is a side View, and Fig. 2 a bottom View, of a superheater embodying my invention. Fig. 3 is a sectional elevation along line E F of Fig. 4. Fig. 4 is a horizontal section along line A B of Fig. 3. Fig. 5 is a vertical section along line G I-I of Fig. 6, and Fig. a horizontal section along line C D of Fig. 5.

The superheater chie'fiy comprises a cylindrical casing a, mounted on a base-plate CZ and secured to the same by bolts, and a double cylindrical heating-body b c, also mounted on the said baseplate. The annular space between the inner cylinder c and the outer cylinder d of the heating-body is provided with radial partitions e, which divide the said space into compartments serving to conduct the Water. The compartments communicate with one another alternately at the top and at the bottom, because the partitions e stop short of the top plate or roof g or of the bottom d, as shown by Fig. 5. The Walls b and c of the heating-body are provided with ribs or gills 7i, arranged not only on the outside of the same, as shown by the drawings, but also on the inside, so as to project into the Water passages or compartments j'.

The steam-supply pipe t' is provided with a small draw-off pipe 7o and terminates at the base-plate d in the steanrchamber l, inclosed by the inner wall c of the heating-body b c. The said chamber Z is left open at the top, so that the steam may subsequently pass into the space m left between the outer Wall b of the heater and the outer casing a. The baseplate dis also connected with the Water-supply pipe n, with the Water-outlet pipe o, and

with a small pipe (not shown) for discharging the Water of condensation from the space m. The fresh Water flows through the pipe n into one of the compartments f, ascending in the same and then descending in the adjoining compartment, and so on-that is to say, it iows up and down in a zigzag line, as indicated by the arrows of Figs. 3 and 5, until it reaches the outlet-pipe o, leading to the boiler. The steam flows through the inlet-pipe i, Fig. 3, into the chamber Z, in which it ascends along the wall cof the water-heater and the ribs or'gills projecting from the same into the space g left free at the top, which it fills, and then descends in the space m, While heating the body l) c from the outside. The ribs or gills abstract heat from the steam very rapidly and transmit it to the Water through the `Walls b c e, as Well as the ribs projecting into the Water-space. As the Water comes into contact consecutively with the colder and With the hotter parts of the heating-body, which is completely surrounded With steam', the Water will be heated uniformly and the pressure in the superheater Will be approximately constant.- On its Way through the compartments fthe Water is heated very rapidly by the heating-ribs h, and the heat of the steam is thereby Well utilized.

1. A feed-Water heater composed of a pair of cylindrical casings, a series of intervening radial partitions to form communicating Water-passages, a steam-chamber inclosed by the inner casing, and a communicating steamchamber surrounding the outer casing, substantially as specified.

2. A feed-Water heater composed of a pair ofl cylindrical casings, a series of intervening radial partitions to form communicating Water-passages, a steam-chamber inclosed by the inner casing, a communicating steam-chamber lsurrounding the outer casing, and ribs projecting from the casings into both of the steam-chambers, substantially as specified.

Signed by me at Dusseldorf, Germany, this 24th day of September, 1901.

GOTTFRIED FLORACK. Witnesses:

WM. EssnNWnIN, V. V. VLnKEns. 

